EP3410955B1 - Appareil médical - Google Patents

Appareil médical Download PDF

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Publication number
EP3410955B1
EP3410955B1 EP17708165.0A EP17708165A EP3410955B1 EP 3410955 B1 EP3410955 B1 EP 3410955B1 EP 17708165 A EP17708165 A EP 17708165A EP 3410955 B1 EP3410955 B1 EP 3410955B1
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EP
European Patent Office
Prior art keywords
medical device
thread
needle body
spiral
tangent surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17708165.0A
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German (de)
English (en)
Other versions
EP3410955A1 (fr
Inventor
Violeta Doci
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOCI DONATA MICHELLE
DOCI, VIOLETA
Original Assignee
Doci Donata Michelle
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP3410955A1 publication Critical patent/EP3410955A1/fr
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Publication of EP3410955B1 publication Critical patent/EP3410955B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/06066—Needles, e.g. needle tip configurations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/06066—Needles, e.g. needle tip configurations
    • A61B2017/06076—Needles, e.g. needle tip configurations helically or spirally coiled
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0082—Catheter tip comprising a tool

Definitions

  • the present invention relates to a medical device with which threads can be introduced into tissue.
  • a medical device with which threads can be introduced into tissue.
  • the device can be used in the healing-medical field, but also in commercial areas.
  • the international patent application WO 01/30245 A1 discloses a surgical instrument that can be used to place surgical sutures.
  • This instrument consists essentially of two tubular elements, the first tube forming a central axis and the second tube being guided as a helix around this axis. The end of the second tube is pointed.
  • the main purpose of the instrument is to make a surgical suture in which the thread is guided in a spiral.
  • the helix-shaped tube is guided through tissue along the intended thread path.
  • the thread can be placed in the tissue in the feed phase or in the removal phase.
  • the U.S. patent application US 2012/0136200 discloses another surgical instrument. This is specially designed for heart surgery.
  • the device has a handle, at the front end of which a puncturing needle is held in the center.
  • a helix-shaped needle is arranged around the puncturing needle.
  • the puncturing needle can be inserted into a heart wall.
  • the helix-shaped needle can be used to place a thread around the point defined by the puncturing needle.
  • the two instruments disclosed in these patent applications are designed for special forms of placement of surgical threads.
  • the surgical threads are essentially intended to be used in the classical manner to make a surgical suture, that is to say the at least temporary one Connection of tissues. Both instruments can only be used if at least two needles are used at the same time and, accordingly, two needles also cut tissue.
  • the US 5,562,685 A discloses an operating tool with a spiral needle, behind the tip of which a through opening for receiving a thread is arranged.
  • a handle is arranged in the rear area.
  • the US 2009/0082788 A1 discloses a curved surgical instrument, at the front end of which a type of pliers is formed which can be actuated, for example, with the aid of scissor legs. There is an opening near the pivot point of the pliers. To operate the forceps, there is an actuator in the form of a thread or wire inside the surgical instrument.
  • the US 2012/0071719 A1 discloses a medical device with two spiral bodies, each with a protruding armature, openings being provided in the armature.
  • the present invention seeks to provide a novel medical device. This should serve for the gentle and controlling laying of surgical threads, which do not necessarily have to be used to connect two tissue parts. Tissue should be protected as much as possible.
  • the medical device can be used by a doctor or by other medical and non-medical personnel. It can be used for treatment, in particular for operations, in humans or in animals.
  • the application comes in the medical or healing field, but also a purely commercial application.
  • the medical device is suitable for placing threads in a tissue.
  • threads can be placed to fill up tissue.
  • relining skin folds comes into consideration. Therefore, the medical device can be used advantageously in cosmetic surgery.
  • This medical device is also suitable for passing a thread through tissue in such a way that the tissue, in particular also its external appearance, is tightened by the thread.
  • an application in the context of cosmetic surgery can be considered.
  • the medical device should in particular comprise a spiral needle, a needle that at least partially has a spiral shape.
  • the spiral needle has a spiral needle body which is formed about a central axis.
  • the needle body runs along a spiral path around this axis.
  • the needle body has a front end and a rear end. It is at least the front end integrally formed with the needle body.
  • the integral formation can be brought about by (possibly detachable, but essentially) firm connections of a part that forms the front end to the needle body.
  • the transition between the needle body and the part that forms the front end should then be smooth and essentially seamless.
  • the front end is expediently generally formed in one piece with the needle body.
  • the rear end can expediently also be formed integrally with the needle body, the one-piece design again being particularly expedient.
  • the front end runs in the direction of the spiral path of the needle body, ie the course of the needle body continues towards the front end without a kink being formed.
  • the front end has a tip and a thread receptacle arranged behind it, the tip, or more precisely the end point or summit point of the tip, marking the outer end of the front end.
  • spiral needle body and generally also the front end and the rear end are solid. This means that these parts are not made from a hollow body and accordingly have no lumen or any other cavity.
  • the thread take-up can be designed in various forms, an opening is expedient. This opening can be round or oval. The opening can also be slit-shaped.
  • the needle body Along the spiral path, the needle body has an outer tangent surface and an inner tangent surface.
  • the tagent areas are defined by two axes. One of these axes is a tangent to the outside or inside of the spiral track. The other axis runs parallel to the central axis (A).
  • the inner tangent surface is closer to the central axis than the outer tangent surface.
  • the spiral needle body also has an upper side and an opposite lower side. The The top is generally oriented towards the rear end and, if necessary, a handle.
  • the opening runs from the top of the needle body to the bottom of the needle body.
  • the front end is tapered between the outer tangent surface and the inner tangent surface. So if you look at a cross section perpendicular to these surfaces (which then essentially runs parallel to the top and bottom of the needle body), a tip will be visible in this cross section. This tip is advantageously triangular. An isosceles triangle is useful. It is expedient in any case if the end point or summit point of the tip is arranged centrally between the outer tangent surface and the inner tangent surface.
  • the front end between the top and the bottom of the needle body is pointed.
  • a tip also results in a cross-sectional area perpendicular to the upper side and to the lower side (which therefore runs parallel to the outer tangent surface and to the inner tangent surface).
  • the end point or the summit point of the tip is closer to the top than to the bottom. It is particularly expedient if the summit point is at the very top, that is, the apex is an extension of the spiral path.
  • the thread take-up can expediently have the shape of a hole, essentially the shape of a round or an oval hole. It is particularly advantageous if a thread take-up comprises one hole, two holes or three holes.
  • the thread take-up can also be designed as a slot.
  • a substantially straight slot is expedient, that is to say a slot with a rectangular cross section. If an elongated rectangular shape is formed, it may also be advantageous to provide a bulge, for example a circular bulge, on at least one short end of such a rectangle. Such bulges can also be formed on both opposite short ends.
  • a suitable slot can also have an oval shape in cross section.
  • the front end of the medical device has a bulbous section.
  • a bulbous section can be provided in particular at the level of the thread take-up.
  • the diameter of the needle body increases along the bulbous section (measured along a circular disc which is perpendicular to the spiral path).
  • a medical device that already has a surgical thread is also useful. This thread is expediently already guided through the thread holder. It is particularly useful if such a device is shipped with the thread in sterile packaging.
  • the device can have one thread or more than one thread, for example two, three or four threads.
  • a set of medical devices comprising two, three or more devices is also useful within the scope of the present invention. These devices can be made available with or without threads.
  • the devices can be of the same or different designs. For example, it is useful to combine a medical device with a left-turning spiral needle and a medical device with a right-turning spiral needle. In this way, a set with two complementary medical devices can be made available.
  • the length of the device can also be varied along the central axis A.
  • the diameter of the needle body can be varied around the central axis.
  • Medical devices made of different materials, for example with different material hardness, can also be used. Surgical steel is generally used here, but other materials for producing the medical device are also conceivable, for example plastics. All of these materials are available in different material hardness.
  • a device can also be expedient in which the spiral distance changes along the central axis. This means that the spiral rotates 360 degrees around the central axis over variable lengths (measured on the central axis).
  • Devices with these variations are each individually useful for certain areas of application, but they can also be combined in a device set.
  • Fig. 1 shows a perspective view of a medical device 10 according to the present invention.
  • the device has a spiral needle 12.
  • This spiral needle comprises a spiral needle body 14, which extends from a front end 16 to a rear end 18.
  • the spiral needle body runs along a spiral which extends around a central axis A.
  • the rear end 18 is connected to a handle 20.
  • the medical device 10 has a tip 22 at the front end 16.
  • a thread take-up 24 is also arranged in the region of the front end, but behind the tip 22.
  • Fig. 2 shows an enlarged perspective view of the course of the spiral needle body 14.
  • the spiral winds along a spiral path from the rear end (not shown) towards the tip 22.
  • the thread holder is provided, which here is the shape of a single hole 26 has.
  • Any number of discs can be thought of as cross sections through the needle body along the spiral path.
  • An outer tangent surface and an inner tangent surface as well as an upper side and a lower side can be defined for each of these disks.
  • the outer tangent surface is defined by an outer tangent to the disc (and perpendicular to the disc surface) and by the central axis.
  • the inner tangent surface is correspondingly defined by the inner tangent to the disk (more precisely: to a ring lying in the disk, the radial thickness of which is determined by the needle body) and the central axis. Areas of the needle body that are offset by approximately 90 degrees can be described as the top or bottom of the needle.
  • T a for the outer tangent surface, T i for the inner tangent surface, O for top side, U for Underside the corresponding areas are easily recognizable (although it is not possible to see the underside U in this illustration). In an analogous manner, they are to be determined for a needle with a slightly different shape.
  • Fig. 3 shows in two cross-sectional views the front end 16 of a needle body according to the invention.
  • the front end 16 is delimited by a tip 22.
  • An outer tangent surface, an inner tangent surface and the upper side and (in the other cross-sectional view) also the lower side are drawn in for orientation.
  • the thread take-up is provided in the form of three holes, namely a first hole 26, a second hole 28 and a third hole 30.
  • these holes connect the top of the needle body with the bottom of the needle body.
  • the front end has an indentation 29 approximately in the area of the thread receptacle. This makes guiding the tip easier and protects tissue.
  • the edge areas of the corresponding indentation are marked in the cross-sectional view by dashed lines. Beads can run along these lines, which laterally limit the indentation.
  • the tip shape is also clearly visible in the two cross-sectional views. Between the outer tangent surface and the inner tangent surface, the front end tapers at the summit point. This lies in the middle between the outer tangent surface and the inner tangent surface. The front end 16 also tapers between the top O and bottom U. However, this tip is not in the middle between these two sides, but rather on the side of the top.
  • Fig. 4 shows in two cross-sectional views, which of the Fig. 3 correspond to another embodiment of the medical device according to the invention. This has a different design of the front end 16.
  • the shape of the tip 22 is selected, however, as in the device Fig. 3 .
  • a slot 32 is provided in this device. This slot essentially has the shape of an elongated rectangle in cross section, as can be seen clearly in the upper cross-sectional view.
  • hole-like bulges 34A and 34B are provided at the narrow ends of the rectangle. These make it easier to pick up a thread.
  • Fig. 5 shows in two cross-sectional views, which those of Fig. 3 correspond to yet another embodiment of a medical device according to the invention.
  • a slot 32 is again provided in this device.
  • the slot also has the shape of an elongated rectangle in cross section. However, it has a hole-like bulge 34A only at a narrow end of the rectangle. This bulge makes it easier to pick up a thread, which is then guided very securely at the narrower end of the slot.
  • Fig. 6 shows the front end 16 of another medical device according to the invention. This has no holes, but rather a plurality of grooves, namely groove 36A, opposite groove 36B, and even closer to tip 22, a third groove 36C. A surgical thread can also be firmly anchored to these grooves.
  • Fig. 7 shows another embodiment of a medical device according to the invention.
  • an oval slot 38 is provided for the thread take-up.
  • the front end 16 of the needle body has a bulbous area. In this area, the diameter of the needle body, measured perpendicular to the spiral path, is broadened.
  • the diameter d results in front of the bulbous region 14, while the larger diameter D results in the bulbous region.
  • Fig. 8 shows a cross-sectional view of yet another embodiment of a medical device according to the invention.
  • a hole 42 is received at the front end behind the tip 22.
  • the thread does not have to be threaded into this, since the hole is connected to the inner tangential surface of the needle body through the notch 44.
  • a bulbous area 40 is provided in the vicinity of the hole.
  • Fig. 9 shows the spiral needle of a medical device according to the invention, which carries a surgical thread 46 in its thread receptacle 24. It is expedient that an approximately central section of the surgical thread 46 is received by the thread receptacle 24. Both ends of the surgical thread can then be guided side by side or even twisted. In this way, the surgical thread 46 has a secure fit in the thread receptacle 24. It is also possible to insert twice the thread thickness, namely two ends of the thread, into the tissue.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Claims (12)

  1. Appareil médical (10), qui comprend une aiguille spiralée (12), l'aiguille spiralée (12) comportant un corps d'aiguille (14) en forme de spirale qui est formé autour d'un axe central (A) et s'étend le long d'une trajectoire spiralée et qui comporte en outre une extrémité avant (16) et une extrémité arrière (18), au moins l'extrémité avant (16) étant constituée d'un seul tenant avec le corps d'aiguille (14), la trajectoire spiralée comportant une
    surface tangente extérieure (Ta), une
    surface tangente intérieure (Ti), un côté supérieur (O) et un côté inférieur (U) opposé à celui-ci, et l'extrémité avant (16) s'étendant en direction de la trajectoire spiralée du corps d'aiguille (14), et l'extrémité avant (16) comportant une pointe (22) et un logement pour fil (24) disposé derrière, le logement pour fil (24) comportant une ouverture (26, 28, 30, 32, 38, 42), et
    l'extrémité avant (16) étant effilée entre le côté supérieur (O) et le côté inférieur (U), et un point culminant étant constitué entre le côté supérieur (O) et le côté inférieur (U), caractérisé en ce que l'ouverture (26, 28, 30, 32, 38, 42) s'étend du côté supérieur (O) vers le côté inférieur (U), et en ce que le point culminant est situé plus près du côté supérieur (O) que du côté inférieur (U).
  2. Appareil médical (10) selon la revendication précédente, le corps d'aiguille (14) étant constitué de façon massive.
  3. Appareil médical (10) selon l'une des revendications précédentes, l'extrémité avant (16) étant effilée entre la surface tangente extérieure (Ta) et la surface tangente intérieure (Ti).
  4. Appareil médical (10) selon la revendication précédente, le point culminant étant constitué de façon centrée entre la surface tangente extérieure (Ta) et la surface tangente intérieure (Ti).
  5. Appareil médical (10) selon l'une des revendications précédentes, dans lequel l'extrémité arrière (18) s'étend de façon rectiligne.
  6. Appareil médical (10) selon la revendication précédente, l'extrémité arrière (18) s'étendant au moins par tronçons sur l'axe central (A).
  7. Appareil médical (10) selon l'une des revendications précédentes, dans lequel l'extrémité arrière (18) est raccordée à une poignée (20).
  8. Appareil médical (10) selon l'une des revendications précédentes, dans lequel le logement pour fil (24) comprend entre un et trois trous.
  9. Appareil médical (10) selon l'une des revendications précédentes, dans lequel le logement pour fil (24) comprend une fente (32, 38).
  10. Appareil médical (10) selon l'une des revendications précédentes, dans lequel l'extrémité avant (16) s'élargit de façon bombée dans la zone du logement pour fil (24).
  11. Appareil médical (10) selon l'une des revendications précédentes, une échancrure (29) étant prévue sur l'extrémité avant (16) dans la zone du logement pour fil (24).
  12. Appareil médical (10) selon l'une des revendications précédentes, dans lequel le logement pour fil (24) guide un fil chirurgical (44).
EP17708165.0A 2016-02-04 2017-02-06 Appareil médical Active EP3410955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016101937.2A DE102016101937A1 (de) 2016-02-04 2016-02-04 Medizinisches Gerät
PCT/EP2017/052570 WO2017134311A1 (fr) 2016-02-04 2017-02-06 Appareil médical

Publications (2)

Publication Number Publication Date
EP3410955A1 EP3410955A1 (fr) 2018-12-12
EP3410955B1 true EP3410955B1 (fr) 2020-03-18

Family

ID=58192260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17708165.0A Active EP3410955B1 (fr) 2016-02-04 2017-02-06 Appareil médical

Country Status (6)

Country Link
US (1) US20190328385A1 (fr)
EP (1) EP3410955B1 (fr)
CN (1) CN109414259A (fr)
CA (1) CA3030324A1 (fr)
DE (1) DE102016101937A1 (fr)
WO (1) WO2017134311A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5356424A (en) * 1993-02-05 1994-10-18 American Cyanamid Co. Laparoscopic suturing device
US5562685A (en) * 1994-09-16 1996-10-08 General Surgical Innovations, Inc. Surgical instrument for placing suture or fasteners
WO2001030245A1 (fr) 1999-10-26 2001-05-03 H Randall Craig Instrument de suture helicoide
CA2409230C (fr) * 2000-05-16 2009-06-02 Taut, Inc. Embout penetrant pour assemblage de trocart
EP1778096B1 (fr) * 2004-08-16 2008-10-15 Zimmer Spine, Inc. Dispositif de suture helicoidal
CN200991260Y (zh) * 2006-12-22 2007-12-19 瞿明 微创手术缝合针
US20090082788A1 (en) * 2007-09-25 2009-03-26 Elmaraghy Amr Suture management method and apparatus
US9782168B2 (en) * 2010-09-20 2017-10-10 Entourage Medical Technologies, Inc. System for providing surgical access
US9226824B2 (en) 2010-11-30 2016-01-05 Edwards Lifesciences Corporation Surgical stabilizer and closure system

Also Published As

Publication number Publication date
EP3410955A1 (fr) 2018-12-12
CA3030324A1 (fr) 2017-08-10
DE102016101937A1 (de) 2017-08-10
US20190328385A1 (en) 2019-10-31
CN109414259A (zh) 2019-03-01
WO2017134311A1 (fr) 2017-08-10

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